The TrueCut double-sided 24" x 36" cutting mat is top-of-the-line, featuring an enhanced self-healing surface and special attention to the detail of the grid measurements and numbering. All of our self-healing mats are double-sided, so you get double the use! One side includes angle reference guidelines, the other side has bias markings for cutting bias strips. Use both sides to double the life of your mat! Our self-healing cutting mats have a center core made of 5 layers of PVC plastic, allowing the cuts to self-heal faster and keep the working surface smooth. The grids on the TrueCut cutting mats are precisely measured in ⅛ increments in easy-to-see colors. The numbers are set right on the border of the grid, allowing you to accurately measure and make cuts all the way to the edges without the fabric covering the numbers. The measurements along the top and bottom run in both directions so you can measure left-to-right or right-to-left. We use colors on our cutting mats that are easy to see and easy to read so you can cut and measure with ease.